Temporary binder.



No. 649,367. Paented May l5, |900.

J. BY M.

TEMPORAR INDEB.

ion led Feb. 28, 190

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nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn nc No. 649,867. Patented may l5, |900. J. Bvsom.

TEMPORARY BINDER.

' erica.

.IO'IIN .BYSTROBL OF CHICAGO, ILLINOIS.

TEMPORARY BINDR.

SPECIFICATION forming part of Letters Patent No. 649,867, dated May 15, 1900.

Application filed February 26, 1900. Serial No. 6,512. (No model.)

To @ZZ whom t may concern..-

Be it known that I, JOHN BvsrRon, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Temporary Binders, of which the following is a specification.

This invention relates to improvements in temporary binders, and in the embodiment herein shown is in the form of a bound book containing a number of leaves, which number is capable of being increased or diminished and the relative arrangement of the leaves changed at the pleasure of the user.

In the accompanying drawings, Figure l is a face view of the body of the binder, showing the latter closed. Fig. 2 is likewise a face view,but with one side of the binder extended and one of its hinged Wings turned downward to facilitate a change in the number or the arrangement of the leaves of the binder. Fig. 3 is a side view of the binder in the same position as in the precedingtigure, but with leaves and a cover added. Fig. i is a transverse section through the back of the binder on dottedline e l of Fig. 3. Fig. 5 is a transverse vertical section on dotted line 5 5 of Fig. 2. Fig. 6 is a transverse section on dotted line 6 6 of Fig. 4. Fig. 7 is an end elevation of the binder extended and opened. Fig. 8 is a rear view of the binder in the position indicated in the next preceding figure. Fig. 9 is a transverse vertical section through the binder on the axial line of one of the lockingstuds. Fig. l0 is an enlarged sectional view of one of said locking-studs. Fig. ll shows two detail views of the locking-latch for the hinged wings, and Fig. l2 is a view of the key for operating the locking device shown in Fig. lO.

Lilie lett-ers of reference indicate corresponding parts throughout the several views.

In the production of this binder I provide the solid back piece A, transversely perforated at its side edges in the openings A and A2, all of said openings having the metallic liningtubes A therein. rl`he rear side of the back piece A has a covering A4, of sheet metal, bent over at the ends of the solid back piece A and secured to said back piece at each end thereof by the screws A5. This covering A4 is slightly wider than the back piece A and is secured l at a little distance therefrom in order to leave a space between said back piece and said coverin g for the reception of the extension back pieces to be later described herein. B are extension members for each side of said rigid back piece A,and these extension members are mounted upon the guide-pins B' and have a sliding movement relative to said back piece. The guide-pins B are tubular, having in their interior recesses the coil-sprin gs B2, which being confined within the openings A2 tend to force the extension members B outward from the rigid back piece A. These extension members B comprise the side bars B, fixed to the outer ends of said guide-pins B', the extension back pieces B4, which overlie one another in the space between the rigid back piece A and its covering A4, and the side wings B5, having a hinged connection with the side bars Bis near the rear edges of the latter. These side wings B5 are reinforced in thickness at their forward edges in order that they may be flush at their inner surfaces with the inner faces of the side bars B3, and; also that they may have sufficient thickness rigidly to support the holding-pins BG, set in said wings near their free edges and extending inward therefrom. Each of said hinged wings B5 carries on its inner face a pivoted latch B7, which latch is capable of being turned into engagement with the side bar B3, and thereby lock its supporting-wing in a position at right angles with the exten sion back pieces B4.

BS is a locking-stud lying in each of the openings A in the back A. One of these studs at its outer end is rigidly secured to each of the side bars B3. The forward end of the stud is split, and it is provided with an axial opening B9, tapering at its forward end and screwthreaded near its rear end. An expanding needle B10, pointed at its forward end and screw-threaded near its rear end, is adapted to enter the said axial openingB of the locking-stud BS. The rear end of the expanding needle B10 is provided with a square shank corresponding to the square socket-opening in the key B11, with which it is adapted to be turned. When the point of the expanding needle engages thel tapering portion of the locking-stud BS, it spreads the bifurcated forward end of said stud and causes it frictionally to engage the inner side of the liningthe sides be also extended in order to close the binder. Single leaves may be withdrawn by releasing the hold of both locking-studs B8 and spreading the extension members B the distance between the ends of the holdingpins of the different sides when the latter are extended, permitting the withdrawal of single leaves. The frame, which is shown in Figs. l and 2,' in practice is covered with leather or other suitable materials, and covers like those of a bound book are supplied as a protection to the leaves.

I claim as my inventionl. In a temporary binder, in combination, a rigid back portion having an opening therein; extension side members having a sliding engagement with said back portion; holdingpins carried by said extension members, for the leaves; and an expansion-stud for the opening in said back portion, for frictionally locking one of said extension members in position relative to said back portion.

2. In a temporary binder, in combination, a rigidback portion having openings therein;

extension side members having pins rigidly affixed thereto, adapted to slide each within an openin g in said back portion; holdin g-pins carried by said extension members, for the leaves; and expansion-studs affixed one to v each of said extension members, which studs are adapted to enter each within an opening in said back portion, for frietionally locking the extension members in position relativeto said back portion.

3. In a temporary binder, in combination, a rigid back portion having openings therein; a side bar having pins rigidly affixed thereto, adapted to slide within certain of the openings in said back portion; avwing hinged to said side bar, and having holding-pins for the leaves; and an expansion-stud fixed to said side bar, which stud is adapted'to enter one of the openings in said back portion, for frictionally locking the side bar in position relative to said back portion.

4. In a temporary binder, in combination, arigid back portion having openings therein; a side bar at each side of said back portion; pins fixed with relation to said side bars, adapted to slide Within certain of the openings in said back portion; a wing for each of Either orboth sides may beV Vpins rigidly fixed to said side bars, and adapted to' slide each within an opening in said back portion; a sliding extension-back for each of said side bars, rigidly fixed thereto; a wing for each or" said side bars, having a pivotal engagement therewith; holding-pins 011 each of said Wings, for the leaves; andV expansion-studs fixed one to each of said side bars, each of which studs is adapted to enter one of the openings in said back portion, for frictionally locking the side bars in position relative to said back portion.

G. In a temporary binder, in combination, arigid back portion having openings therein; a side bar at each side of said back portion; pins fixed with relation to said side bars, adapted to slide each within an opening in said back portion; a wing for each of said side bars, having a pivotal engagement therewith; holding pins on each of said wings, for the leaves; a latch for each of said wings, having a pivotal engagement therewith, 'and adapted to engage said side bars;

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ed to slide each within an opening in said back portion; springs in said openings; a back for each of said side bars, rigidly fixed thereto, which backs overlie each other between the back portion and its rear cover; a wing for each of said side bars, having a pivotal engagement therewith; holding-pins on each of said wings, for the leaves; and expansion-studs fixed one to each of said side bars, each of which studs is adapted to enter one of the openings in said back portion, for frictionally locking the side bars in position relative to said back portion.

JOHN BYSTROM. /Vitnesses:

L. L. MILLER, s GEO. L. (JHINnAI-IL. 

